2154208 has 48 divisors (see below), whose sum is σ = 4959360. Its totient is φ = 902016.

The previous prime is 2154193. The next prime is 2154209. The reversal of 2154208 is 8024512.

It is a super-2 number, since 2×2154208² = 9281224214528, which contains 22 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13135 + ... + 13297.

It is an arithmetic number, because the mean of its divisors is an integer number (103320).

2^2154208 is an apocalyptic number.

2154208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2154208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2479680).

2154208 is an abundant number, since it is smaller than the sum of its proper divisors (2805152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154208 is a wasteful number, since it uses less digits than its factorization.

2154208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2154208 is about 1467.7220445302. The cubic root of 2154208 is about 129.1504364391.

The spelling of 2154208 in words is "two million, one hundred fifty-four thousand, two hundred eight".